I Want to Round You Square - Ch. 5

[MangaDex]

 

[BlazingMagpie]

I think the difference was that this was just a friendly tap on the back, not a sexual wrap around the waist.
I think mangaka is trying to imply something else, though

 

[Roiya]

She's becoming more trusting of him. It's not romantic yet as it might suggest. IMO, they're building a good foundation of trust and friendship which may turn romantic later on.

Spoiler

it seems the guy might be the first to start catching feels from what I see in the raws. I see him being bothered by how close she started getting to the glasses sempai guy and he is always looking at her. It's harder to tell on her end since she tends to be poker faced but she gets pretty comfortable with his presence.

 

[FStubbs]

@Roiya he did notice her when her glasses were off.

 

[themoobz]

they do suit each other tbh

 

[Yogurlapiz]

I want ot say they like each other but they don't, just the fact she doesn't mind him touching her is because he doesn't anything in mind or wanting from her anything.... So it's okay.... Well, still I feel and hope he will be the first to fall. :3

 

[chonkury]

Well, it's good to see that he's being responsible and keeping an eye on her. This might be the first time he's had to look out for someone to this extent; it's not hard to see those feelings growing deeper, whether as friends or something more.

 

[Senros]

Yeah, imo the first guy was too forward and too creepy. The first time he touched her was to grab her waist... wtf... Maybe if it was for a picture or if he was someone famous and she was a fan. You need more trust and more romantic interest between the two to just place your hand of someone's waist for a long time. I loved that Charao-kun placed his hand on the dude's leg to tell him, "You are being creepy" xD

Charao-kun touched her in the back for a short time, so place and duration are different. If he had grabbed her waist and she didn't feel disgusted, then it would have been a good sign. For now it's not much... I mean, the first time he did a kabedon on her, he only had his underwear on, so she was pretty confused and maybe a bit disgusted. Now she is just used to Charao-kun.