"This game" just blew my mind. Everything about it is beautiful. Konomin's voice is also better here and seems to have improved. That delicate piano intro just won my heart. I feel like wanting to learn piano now.
[This game] Wow. Her best single ever. DAT PIANO, DAT EVERYTHING. I like the intrumental version as much as the vocal version. 
Don't forget サイバーサンダーサイダー. That song really suits her voice better than does This game, IMHO. That depth, that range, that speed. Simply amazing.