203号の隣人は鍵束ひとつ残して消えた。

The kind and friendly neighbor Nagito has a gentle smile. But in reality...!? You are in love with your neighbor Nagito, who has been very kind and friendly to you. But not knowing how to express your feelings, you end up acting like a stalker! That in turn feeds into a vicious cycle of self loathing and hesitation. One day, you find out that Nagito has been aware of your stalker-like habits... And nonetheless has continued to treat you with kindness. That very kindness overwhelms you with guilt, and you decide that you must move away from him. On the day you plan to move out, you confess to Nagito about your stalker-like habit and apologize. But Nagito seems unfazed. "I know." he laughs in amusement, and then pulls you into his room. There, in his room, you are witness to something totally unexpected----. The audio work "The Neighbor in Room 203 Disappeared Leaving a Key Behind" now in comic version! (Source: DLsite, official)