Responses
Yeah, the manga has mixed reviews with Japanese fans. It's considered kidnapping regardless of the situation of the minor, even if the parents are abusive. You help by housing them without their guardian's consent, that's a crime. What's legal may not always be moral. Yoshida is a criminal even if he never touches or looks at Sayu in a sexual way.
The entire premise of the manga actually happened not long ago in real life...and as one can imagine, it didn't end well lmao: https://japantoday.com/category/crime/29-year-old-tokyo-man-arrested-after-letting-schoolgirl-live-with-him