Thanks you very much. Somehow the thought to look up at the volume illustrations didn't come at all to me before this. So, once again, thanks you very much.
Spoiler: Answer to your question Yes, yes they will. They both realize their feelings for each other in volume 7. They were so nervous after realizing their feelings. The rest of the squad all were leaving, trying to find an excuse to leave them alone so they can get together. They were so nervous though and flustered that they smelled of the same shampoo from the hotel. Shin found an excuse(Cause it was dark) to hold Lena’s hand. Lena tries to confess but then they were disrupted by Dustin and the other squad members became pissed which kinda ruined the atmosphere. But in the end, Shin does confess his feelings and Lena does kiss him.