An NPC that appears in 4 Goddesses Online. She was created using Neptune's HDD form in real life as the motif for both her physical form and her demeanor. Her personality is quite collected and she is incredibly mature. Every once in a while, however, a glimpse of her ditzy side can be seen.
According to the story of 4 Goddesses Online, she is one of the four Goddesses who sealed away the Demon King long ago. Her weapon is a one-handed sword, and she purifies enemies with her incredible power. She is, of course, a Goddess class character. 
Purple Heart's figure remains the same in the other series but now her outfit is angel-like. Firstly, she has a two-ringed halo and a pair of double wings. Her bodysuit is white and decorated with golden outlines. The bodysuit is somewhat translucent at the both sides of her stomach. She wears white gauntlets that has a lavender accessory attached to it. Those accessories can also be found at her waist. She has wears a pink flower hairclip with golden leaves.
Purple Heart is a serious and mature person. She's often calm and rarely changes facial expressions. She is a very observant and intelligent female, thinking in a rational matter most of the time. She is the complete opposite of her human form in many aspects but her strong sense of justice and confidence remains unchanged. It can be said that Purple Heart is a bit arrogant, having a strong confidence in her abilities and believing that no one can defeat her.
Purple Heart's voice can be heard when Neptune offers the Amethyst Glass at an altar in Tetyu Temple. She gives the Chosen Ones blessings from the Goddesses and the party acquires the Source of Life.
The Chosen Ones have connected the earth and the Divine Realm. They enter the Divine realm and Neptune is awe. Purple Heart tells the Chosen Ones have done well to come this far. They have been waiting a very long time for the day they would meet. Neptune is impressed with "me". Neptune understands the audience might not understand but in the other games, she actually transforms to Purple Heart.
Black Heart reports that right now, the evil they sealed is trying to revive again. They cannot stop that on their own and asks the Chosen Ones for their help.Noire agrees to help them. They are even ready to do battle with the Demon King himself. Noire thinks talking to her character that looks like her when transformed is kind of strange. Uni thinks this is really Noire. She wonders why she is crying.
White Heart asks the Chosen Ones again if they can entrust the fate of this world to the Chosen Ones. Blanc assures White Heart they can. Rom's eyes sparkle as she comments on how pretty Blanc is. Ram tells her sister that they should make some wings and pretend that they are Goddesses. Blanc tells the twins that they are already Goddesses.
Green Heart understands the intentions of the Chosen Ones. Green Heart believes they will see this through and with the Goddesses' return to earth, they will provide the Chosen Ones with more protection and greater power. Vert thanks the Goddesses. If the Goddesses are controlled by the AI, Vert hopes to have a proper conversation. Vert is impressed so far. Nepgear thinks it would be nice to talk to the Goddesses like they have talked to Bouquet.
Black Heart notes that the Demon King's power is great but if everyone is united in battle, they have a chance in victory. White Heart urges everyone to gather their strength and defeat the Demon King. Green Heart tells them the time for the final battle is soon. It is time for the Goddesses to descend to Alsgard. Vert notes Bouquet will be looking forward to meeting them all. CPU's firepower has increased and Neptune thinks the Demon King is nothing compared to them. Purple Heart laughs and she promises on behalf of the Goddesses that she will show them the power of the Goddesses. Nepgear thinks it is expected that both Neptunes make a great combo.
The Goddesses all return to the altar. Bouquet welcomes everyone back and notes that it is such a honor to behold the countenances of the Goddesses. She asks them to please put an end to the evils in this world. Purple Heart thinks Bouquet has done well to guide this world as the Royal Geist. She wants her to continue her good work. Bouquet promises that she always will. Neptune wants to say something too. She tells her "other me" that they should do their best.
Purple Heart does not understand what Neptune means by "other me". Blanc tells Neptune she shouldn't have to say this to her but their narrative is not going to make sense to the in-game Goddesses. It seems to be case so far and Nepgear tells her "older sister" not to worry about it. Purple Heart has no idea what she means by older sister. Nepgear apologizes and explains that she just looks like so much like her. It will be a hard habit to break. Purple Heart thinks in any case they have descended safely upon earth and they will always be by the Chosen Ones' side. They should fight together from now on. Neptune and others agree.
Back in Wishuel, Bouquet arrives and is glad that they have safely returned from the ruins. She introduces the 4 Goddesses to Wishuel, a hub for adventurers. Purple Heart is grateful that the Cathedral is still standing since that means the people still believe in their blessings remains unchanged. Purple Heart wants to thank everyone in the city for this. The 4 Goddesses are eager to protect the city that still has faith in them to this day. Bouquet knows that the Goddesses have just returned but they are approaching the ultimate battle with Demon King. They have overcome many different trials until now and with all their strength Bouquet truly believes they can save this world.
Green Heart reports that the Demon King's captains have built a gate to the Demon Realm at Atlio City Ruins. It is possible they are trying to revive him as well. White thinks they should get there immediately before he revives. Purple Heart tells White Heart that is difficult as there is a barrier up that prevents outsiders from entering. Bouquet tells them that it is the Demon King's captains, the Paramount Pair, who are maintaining the barrier. The Chosen Ones and Goddesses are eager to defeat them.
Bouquet tells them to be careful. They did receive reports that the Paramount Pair are hiding in a different dimension. Green Heart thinks that is a job for the Goddesses. They will triangulate their location based on the waves of evil they radiate. Vert is happy to leave the navigation to the Goddesses and they will prepare for the quest. Bouquet tells them once they are ready, they should stop by the Cathedral.