Born and raised in the back-alleys of Gamindustri, he knows just about every crook in town. Ever since Compa cared for him when he was injured, he's had feelings for her. They remain unrequited, however.
He has chosen the Adventurer as his class within this game.
In reality, he's a mouse, but since the Mouse race doesn't exist in 4 Goddesses Online, his avatar is a human like the other players. 
Warechu now looks like a human. He has the figure of a male youth. He has large eyes with red irises and black pupil and grey hair in a bowl cut. His attire is essentially a cosplay of his form as a rat. He has a hood that is in the shape of a rat's head. He wears a black shirt then a gray t-shirt over it and black pants. He has a black scarf with the broken heart design. He carries a beige bag and there is a tail that hangs out behind him. Behind him, is a pair of small red wings.
Warechu is foul-mouthed, dislikes being called a rat, and knows when fighting is futile. In order to play this game for free, he managed to get a hold of a ticket. He doesn't like working very hard though, so he hasn't even been raising his levels while playing. Instead, he earns money by selling recovery items at excessively high rates right outside various dungeons. He is also smitten with Compa, comparing her voice to that of an angel.
In Wishuel, Arfoire has finished planting her eggplants and hopes they grow well. Warechu wonders why Arfoire would take up farming in the game as well. He tells her he will not help her this time around. Arfoire does not want him touching her eggplants anyways but points Warechu to the eggplants' item description. Eggplants are forbidden meaning they must be an important item. She encourages Warechu to learn the Cultivation Skill and get his own field. The city has quite a bit of space still.
Warechu admits he is interested in cultivating a few eggplants just because they are taboo, however he is too busy selling recovery items at marked up prices in remote areas. Arfoire acknowledges that he will make money but she points out that it may not be worth the cost and effort to stockpile items and make it to remote areas in the first place. Arfoire declares that she will amass a massive amount of wealth by mass producing the ultimate Forbidden Fruit and selling it without leaving the city then laughs.
Warechu points out that the item can actually be worthless. All Arfoire can do is pray that it isn't.
Later, Arfoire harvests a batch of eggplants. They are of high quality and demands Warechu's assistance in selling her eggplants. He agrees on the condition that he gets 30% of the profits. After a while, the two have failed to sell the eggplants and Warechu is the first to complain. Arfoire wonders why the populace do not understand the value of eggplants.
Warechu notes that eggplants cannot be materials and there aren't many people looking for hidden bosses just yet. Arfoire gets angry at the gamers and calls them spineless. She decides to let the eggplants sleep for now. Luckily, freshness is not a concern in a game. Warechu thinks so too as it'd be a problem if Arfoire harvested too much. Warechu decides to leave and go back to selling random items.
Arfoire and Warechu decide to head to the Fancy Shop. Warechu think the item selection is so random, like a blackmarket but the prices here make no sense. A young clerk welcomes the two of them. Warechu sees the clerk is a little girl but believes it is a saggy old man behind the screen. Peashy eyes light up as she asks the old lady, if she has eggplants.
Arfoire angrily tells her she is not old but asks her if she likes eggplants. The clerk really likes them as they are both yummy and pretty. Arfoire tells the clerk she has a good eye, and gives her one eggplant. The clerk is really happy and decides to give her this. Arfoire notices that the clerk is trying to give her a really rare item.
Warechu warns Arfoire that trading such a rare material for some eggplant is really weird. He notices that they're playing the role of a little girl to well. Warechu does not want any trouble. Arfoire thinks it would be best if they just kept an eye on her and so she tells the clerk to take the eggplant on her as she will take her leave for today.
Near the pond, Warechu thinks this is it. Arfoire notes that they are at the pond of which a spirit lives that will grant any wish. Even if this is within a game, to have it limitless is quite generous. Apparently by offering it some item causes it to appear but the specific conditions are completely unknown. Warechu think they should monopolize it so no else can use it. He wants to take his relationship with Compa to the next level and kiss her.
Arfoire wonders why he would use that. It would be more useful to make vegetables grow faster than to ask for such a worldly desire. Warechu does not care about vegetables but asks that Arfoire does not complain about her Compa. Arfoire says to be honest, he does not care about who Warechu pines for.
Near a pond, Warechu and Arfoire wait in silence. Warechu breaks the silence declaring that he is tired of waiting. Arfoire has gathered as many materials and food as she could but there are no signs of the spirit appearing. Arfoire admits that she is starting to lose her temper. Warechu asks Arfoire what she is doing. Arfoire explains if the spirit won't come out then she'll have to to do something to make it come out.
Arfoire tells the spirit she will throw these delicious eggplants. She tells the spirit to eat up. A paladin is nearby, wondering what is that noise before noticing Arsnore. Arfoire gets irritated by this and tells the little brat her name is Ar- and laughs. To think they would run into each other in a game like this. Neptune can't stand the eggplants everywhere and she decides to run away. Warechu notes that Arfoire was somehow able to make the Goddess of Planeptune appear instead of the spirit. Perhaps this is what Arfoire was wishing for. Arfoire tells him not to say something so ridiculous.
Near the pond, Warechu is upset that they have been coming to the pond with no results. They have to consider the idea that the rumor might be a complete lie. Arfoire thinks it is good at times like this to imagine your dream coming true. Warechu decides to imagine that and in his delusion tells Compa no. They have to keep their relationship pure until their marriage.
Neptune, IF and Compa arrive. Compa greets them and asks if they are on break as well. Warechu is glad that instead of a spirit, an angel has shown up. Is it possible his wish has come true. IF sighs and asks if they are looking for the spirit as well. She bursts their bubble telling them that the spirit likely does not exist.
Arfoire asks IF how can she be so sure. IF explains that there have been no actual reports of people meeting it from her close friends to random customers at her shop. Neptune supposes that it isn't very nice to complain to people who are just taking a break from their job to pursue a mystery. Arfoire is saddened that she was fooled by false info. She supposes she has to recover all her eggplants.
Later, Arfoire, Warechu and Nepgear have gathered all the eggplants from the pond. Warechu is happy that they were able to get some good eggplants out of all of this and decides to give Nepgear one as a present. Nepgear asks if they are sure. Warechu tells her there is no need to hold back and just accept it. Arfoire regrets after chasing an impossible dream, they used up most of their game time. All they have left is the eggplants she hand-picked every day. Warechu adds that even if they were warned, they were just too stubborn and ended up like this. Arfoire concludes that they were truly fools.
Warechu tells Nepgear if she takes the eggplant and roast or boil it then it is some sort of recompense for them. Nepgear laughs to lighten the mood as she notes they really seem worn out. Arfoire thinks it is time to return to her farm. Warechu excuses himself as well.
Warechu watches Arfoire offer up an eggplant to Vert in an attempt to make her a repeat customer. Warechu tells Arfoire that it is such a waste to offer the eggplant for free. She could have gotten at least 10 bells for it. Arfoire explains that the eggplants are not being sold at any other stores. She worries that selling it at 10 bells would cause them to misunderstand the eggplants are actually worth only 10 bells. Arfoire concludes that they can just squeeze more money the next time around.
Some time later, Arfoire and Warechu take a trip to Tetyu Temple. They offer eggplants to the Altar of the Goddesses. A guardian arrives and defeats them quickly.