Titania (ティターニア, Titaania) recurs in the series. She is derived from the fairy queen character in William Shakespeare's play "A Midsummer Night's Dream", which in traditional folklore had no name.
"Queen of the Fairies and wife to Oberon. She is derived from Diana from Roman mythology and is immortalized in Shakespeare's play, 'A Midsummer Night's Dream'."
In the legendary comedy, Titania is named as the queen of the fairies. Due to the massive success of "A Midsummer Night's Dream" and its status as a classic, Titania is used to name the fairy queen in many other works of fiction even though it wasn't a generalized name for the fairy queen in any ancient mythology. While considered beautiful and delicate, Shakespeare portrays her in the play as a very proud fairy, with powers that easily match those of her husband Oberon.
Titania is encountered in Yoyogi Park, where she is in charge of the fairies stationed there. Having been driven insane by Sakahagi's presence, she has several Pixies warp intruders back to a certain point if they run into them. After the defeat of Sakahagi, Titania and Oberon express their appreciation, and the fairies return to normal.
Titania appears as a Persona of the Lovers Arcana in Persona 3. She is available to be summoned once the Protagonist reaches Lv. 50 or above. As a reference of her role in "A Midsummer Night's Dream", Titania, along with Oberon grants the accessibility of the Fusion Spell, Summer Dream, which creates random effects upon execution.
Devil Summoner 2: Raidou Kuzunoha Vs. King Abaddon
Titania appears alongside her husband Oberon during an optional sidequest, reprising their roles in "A Midsummer Night's Dream". Intent on making him her new consort, Titania traps Raidou in fairy Land. Oberon offers him his freedom in exchange for restoring Titania's faithfulness, but reneges on his deal after Raidou complies, deciding to keep him as his page. The couple then fight Raidou together. After Raidou wins, both Oberon and Titania are available for fusion or to recruit.