A letter arrives at Death Cram School. Inside is a an invitation to a spa resort. Yumi declares to the four excited girls that, "No. This is evil itself," points out that they are slacking off too much. Shiki proposes, "When opinions are divided, it's time for boob rock-paper-scissors!" and then wins so they all go to the pool. There, girls from Hanzoo Academy, Homura Crimson Squad, and Hebijo Clandestine Girls' Academy also come, but Asuka says, "Let's have fun together today" and they call a temporary truce. However, a trivial matter sets off a sour quarrel and, at Yumi's suggestion, they settle it with a showdown in the style of the ancient shinobi. (Source: ANN)

From standing in the sun for hours to traveling miles away from home, gorgeous high school student Koizumi stops at nothing to fulfill her desire for ramen. But these previously solo trips soon change when Koizumi's classmate Yuu Oosawa develops an infatuation with her, and begins to join Koizumi uninvitedly on her adventures. As Yuu continues to be shocked by Koizumi's enormous appetite, she learns about the endless variety of ramen from, arguably, its greatest connoisseur ever! [Written by MAL Rewrite]

R-15 is about a boy, Taketo Akutagawa, who attends a school for geniuses: Inspiration Academy Private High School. Taketo is a genius novelist and writes erotica. Despite negative perceptions many people have of him, he aims to be at the top of his class and be recognized as the world's greatest writer.

Despite endless research, the human mind remains a mystery to this day. Unknown to the public, there exist special individuals who are able to dive deep into the minds of people and even manipulate their memories. Gifted with this ability, Hiroki, Tsukasa, and Satoru are among those who use their power to commit crime under the orders of their leader, Katsuragi. The three step into the dangerous territory of the human mind in order to destroy their assigned targets while striving to keep their own minds and memories safe. [Written by MAL Rewrite]