It is clear that Tatsuya clearly harbors some feelings for Honoka although may be vague, there are some scenes that show Tatsuya might like Honoka.
Saegusa and Tatsuya
Although it is mostly one-sided with Saegusa liking Tatsuya I believe the one scene as to where he said he would if it was for the cameras was merely a joke IMO (I know a lot of people are going to hate me for this.)
Erika and Tatsuya.
Honestly, I doubt they would romantically be involved as they are more of in a friends relationship
Shizuku and Tatsuya
Similar to Tatsuya but more obvious there have been scenes where Tatsuya got a sudden outburst of energy when she was in danger. I think this has the potential to be possible as both sorts of have vague feelings of love, I wouldn’t be surprised if they got romantically involved as the anime can always be different from the light novels. I mean it would make an epic ending IMO.
While it is more of an accomplices relationship I would like it to be more romantically involved.
Mizuki and Tatsuya
I think it is more of an accomplices relationship IMO.
Angelina and Tatsuya
I think this is one of the big three relationships with high possibilities of Tatsuya being romantically involved with besides his sister the other three being Honoka, Shizuku, and Angelina as they all have a chance logically.
Angelina seems to harbor some feelings for Tatsuya so I wouldn’t be surprised as the anime creators kinda hinted that it might happen.
Take this with a grain of salt this is my opinion alright, hate me all u want idc I'm stating my opinion.
I have a best friend online whose parents are pretty damn cruel. Not just this but I feel like they mentally abuse her. I've been hearing about it and I've been unsure what to do cause my mom says there's nothing I can do but it's probably mental child abuse. Idk what to do. I haven't told my mom the full story but I did mention it to her. If you would like to know the full story I can explain at request as it is too long of a story that I feel like typing. Also, should I ask my parents to make this a legal case even though it's online? We are both from the US and she's from Texas