Poeple's feelings change... Tetsu is set up for character development, he won't be the same at the end of the story than he was at the beginning. And no, I'm not saying Yukio will fall for Tetsuo, but we just don't know for sure how the characters will evolve, we don't even know if Hyodo is likely to ever correspond Yukio's feelings romantically... Yukio may also end up without a partner. I think as long as his brother doesn't die and he can get away from that toxic corrupted world Yukio will be happy

Please don't let this be cliche and where Tetsu joins the gang and Hyodo dies some how and Yuki end up with Tetsu through this. I know everyone ships Tetsu and Yuki but I feel like Yuki has honest feelings for Hyodo and doesn't see Tetsu in that kind of way.