Karasuda-kun wa, Uzui Chaukara Hiki Komoru.

Karasuda, a reclusive shut-in, finds himself unable to go to school because of his overwhelming libido?! A BL romantic comedy about a very caring chairman and a very "sensitive" gloomy boy. Washimi, affectionately dubbed "the best caregiver", is tasked with delivering school printouts to Karasuda. When visiting his house, he finds Karasuda has huddled himself in a corner under a blanket, the picture perfect "shut-in"! Noticing that Karasuda is acting strange, Washimi goes to touch Karasuda's shoulder and...?! "I did something I wasn't supposed to...", Karasuda says with embarrassment. So he hasn't been coming to school and locking himself in his room to--?! (Source: Coolmic)