Shigo no Sekai demo Shinu made Hataraku Hanashi

Kohiru Hakujitsu is an office lady who committed suicide due to bullying and overwork at a black company. She wakes up not in "heaven" but in a "white company"!
She starts working at the afterlife's Immigration Bureau, and as she gets to know her fellow workers, she slowly recovers from the trauma she suffered before her death…
As she regains hope and her love of work, she starts to have a change of heart about her suicide……!

(Source: Pixiv Comic, translated)