A side story to "Unmatching Heartbeat." As it takes place after the main story, be wary of spoilers. Keigo and Asuma went from childhood friends to lovers, so they should be at the most romantic stage of their relationship! However, Asuma does not seem very enthusiastic for some reason...?
A side story to "Honor Students Know Not Their Place." After officially becoming a couple, can Kyojima and Matsuzuki balance both their school life and grades with their relationship and sex...?!
Su is a relatively modern guy who has just started dating the whimpery and cowardly Aku. While Aku is caring and devoted, he is not quite passionate enough for Su. As if to test Aku's limits, since he never takes the initiative, Su begins to slyly seduce him into bed. A story about the happy and loving sex life of a newly formed couple.
A sexy what-if story about a group of college students. A side story to "It's Always Your Turn" and "Whimpery Aku and Impish Su." The first part revolves around a what-if scenario where the couples from each comic have sex in front of each other in the college classrooms. The second part is a short story based on "It's Always Your Turn" about the background character Asuma. Recommended for anyone who has read the original stories.
A side story to "It's Always Your Turn." Kou and Tanaka are going to live out their dream otaku date...?! There will be some lovey-dovey sex. Please be aware that this contains spoilers for the main story.
"You Are My Everything." This is a side story to "Goodbye, My Beloved." It's actually a prequel to the original, so expect major spoilers. Instead of focusing on the main couple, the story centers around the bottom's ex.