Tsuki 50-man moratte mo Ikigai no nai Tonari no Onee-san ni 30-man de Yatowarete "Okaeri" tte Iu Oshigoto ga Tanoshii

Matsutomo is a salariman at a black company who's being overworked to death by a chief who's a pro at dumping all his work on him. What's more, no one seems to remember his name and they all call him Matsumoto. One night, coming home late once more, he runs into his beautiful yet distant neighbor, S