Secret Affairs, Hidden Truths

The fact that he was an illegitimate child came to light after his father's death. Ueda Naoomi, who fled from home in shock, meets Fujisaki Yuzu, a girl who has also run away from home due to family troubles. Yuzu asks Naomi to cooperate in a staged kidnapping to make her family worry about her. During the time they spend together, they gradually fall in love, but at the end of their journey, a shocking fact is revealed...!?

https://www.cmoa.jp/title/369455/