Lady Tiararose Lapis Clementille and Crown Prince Hartknights Lapis-Lazuli Lacmouth have been engaged since childhood. However, a day before their graduation from the kingdom's academy, Tiararose spots her fiancé embracing another woman, and, overcome with hurt, she recalls her past life as an avid player of an otome game called The Ring of Lapis Lazuli. In the game, Tiararose was no heroine—she was the wicked villainess who stood in the way of the prince and his true love, Akari. Tiararose is destined to face condemnation at the graduation party, and she prepares to accept her fate. Hartknights accuses Tiararose of mistreating Akari, calls off their engagement, and banishes Tiararose from the kingdom. However, having witnessed Hartknights' contemptible behavior, Aquasteed Marineforest, the prince of a neighboring kingdom, steps in and proposes to Tiararose! But Akari is not done meddling in Tiararose's affairs. Within her, Akari holds the power of Holy Prayer, a highly coveted magical ability that could undo the so-called villainess' happy ending.

An abnormal phenomenon has been observed in Kaga, where Akina and his friends live. A town shrouded in thick fog, a great tower standing sentinel… This is the Fantasma. ——On the night when the crimson moon rises, they shall become Fantôme. (Source: Official Site)

Sixteenth season of Yami Shibai.

Fuutarou Uesugi is an ace high school student, but leads an otherwise tough life. His standoffish personality and reclusive nature have left him friendless, and his father is debt-ridden, forcing his family to scrape by. One day during his lunch break, Uesugi argues with a female transfer student who has claimed his seat, leading both of them to dislike each other. That same day, he is presented with a golden opportunity to clear his family's debt: a private tutoring gig for a wealthy family's daughter, with a wage of five times the market price. He accepts the proposal, but is horrified to discover that the client, Itsuki Nakano, is the girl he confronted earlier! After unsuccessfully trying to get back on Itsuki's good side, Uesugi finds out that his problems don't end there: Itsuki is actually a quintuplet, so in addition to her, he must also tutor her sisters—Miku, Yotsuba, Nino, and Ichika—who, despite the very real threat of flunking, want nothing to do with a tutor. However, his family's livelihood is on the line so Uesugi pushes on, adamant in his resolve to rid the sisters of their detest for studying and successfully lead them to graduation.