I think they both like him because he’s sweet and nice to them and not necessarily due to his looks...
It is also his looks bc the mom and the bro were surprised to see how handsome he is , so I guess in that universe he’s considered hot. There isn’t many men in this manga to compare.
her brother was shocked by his good looks and said he would never get rejected on tinder, which is like 75% looks based
Maybe it's the drawing style. We have to rely on other characters' views lol
And usually, charismatic guys boost their looks by being charismatic. And Natori is hella charismatic
Is Natori that hot? Like not that I think hes bad looking but hes not drawn as stereotypically hot and yet everyone's reaction to seeing him with her is like omg lucky / he's so hot / he's tricking her / etc
she's not even ugly herself she just looks a little quiet/nerdy