The Infinite Mystery - Chapter 12 - Returning

Everyone believes Lin Zhao Xi’s a genius.

Only she knows she’s looking back on years of experience in math competitions as a basis to “cheat”.

Until one day, her idol quietly looks at her.

* * *

Time and space overlap, returning thrice.

— The past can change you.

- Description from Novelupdates

Kusumi Chiharu gets a message one day that he has been selected as a Monster Tamer, and he is prompted to select his first partner. He thinks little of the message until he receives a giant package the following day. He assumes it’s the porn books he ordered, but the huge box ends up containing the unconscious body of a near-naked girl! She’s a ghoul named Zonmi, who intends to fight beside him as his partner.

However, it turns out that other hot girls at his mostly-male high school are also magical entities, and Zonmi may not be the only one who wants to fight by his side!

Two years ago, Iris Crawford was mocked by the person she loved as a hopelessly fat woman and was forced to sign a divorce agreement. She endured it!During a kidnapping incident, he chose to save his mistress instead, prompting Iris Crawford to swear that she would make this pair of cheating lovers pay the price!Two years later, she returned slimmed down and transformed, with her scumbag ex-husband continually begging for another chance, saying he had improved...A mysterious young master took to surrounding Iris Crawford, dishing out punishment to the scumbag and publicly humiliating him in the process: Iris Crawford, you’re not suited for something better; you’re suited for the best like me.

The story is centred around a cute android who initially had a happy life with her master who dearly loved her. But she was then struck by a series of misfortunes and ended up in a robot-equivalent of concentration camp. Through experiencing and witnessing the sufferings towards herself as well as the people/robots around her, she eventually gained a better appreciation of life.