I'm still just really happy that they have a seemingly normal brother relationship. Most of these types of mangas have the sibling wind up being a massive piece of trash that abuses the MC in order to justify the MCs point of view. It's refreshing to just see, well, a healthy sibling relationship.
If you can show your love and support for the works and the author, go to https://manga-park.com/title/90915 and hit the button in the screenshot. They currently aren't doing the best in terms of liked numbers, but you will need to somehow make an account to do that. At the time of getting the raws, they only had 98 favorites
What? Seriously? Dude's some kind of saint of a brother... If it were me I'd paint dicks on his forehead everyday, until everyone was convinced those are his birthmarks.
It's nice to see both that rei is very chill and has a good relationship with his brother, and our MC seems to have no bitterness toward his brother because of how he's been treated. Would have been a cheap source of drama that the author cleanly avoided.