Stranger's Handbook - Chapter 19: Exchange Diary

On modern-day Earth, An Lin seems to have been abandoned by God.
When his father suddenly disappears, An Lin is left with his father’s immense debt, putting his life at risk.
After being forced to a rooftop by his pursuing creditors, An Lin is unexpectedly swept off his feet and brought to the ground safely.

High-school student Koremitsu Akagi finds himself attending the funeral of Hikaru Mikado, who had died in an accident during Golden Week. He’s not sure why he’s there, as he only exchanged a few words with Hikaru at school. However, Hikaru doesn’t seem to be completely gone from the world, as he comes back as a ghost in order to fulfill a promise to Aoi Saotome, his fiancée. Since Koremitsu is the only one who can see him, he asks him to carry out his promise in his place.

Complying with his request, Koremitsu tries to fulfill Hikaru’s promises to the rest of his “girlfriends”, helping them overcome past misunderstandings and repair broken relationships.

“First, a hidden marriage.”“Second, the marriage period is one year.”“Third, you are not allowed to have any feelings for me!”These were his three stipulations to her at the entrance of the Civil Affairs Bureau.She readily agreed and adhered to them one by one.But a year later, is the man holding onto her tightly and refusing to let go still the same cold person from a year ago?“Could you let go, please? Our one-year term is up.”“Wife, the contract you signed is indefinite!”

Three years after graduation, Chu Mo, who could barely maintain his most basic life, opened the Shenhao system, and an unlimited and safe bank card appeared in front of him. start a company? to invest? buy stocks? These in unlimited banks…

- Description from novelbuddy