Comprehensive Comic, Why Did I, Who Love to Complain, Travel Through Time?

Now standing in front of you is a former genius doctor in Tokyo, a former model of hard work in an orphanage, and now a migrant worker in another world - Toru Hanami! Toru's decades of hard work in his previous life were completely destroyed by great luck on his way home from get off work. But fortunately, Tianjie couldn't bear Toru's immediate death, threw his soul to another world, and sent a system to merge with Toru. So in the new world, Tohru, who has a new family, formed a bond with the anime heroines with the help of the system, and by the way completed the system's goals in the heaven. (Alias: Zongman, Tokyo Harem King) The resume is insufficient, please move to the text.