I usually don't so amvs with storyline... So here goes nothing!!
Story: Daiki is in Love with Naoya so he will do everything to be with him... But Naoya's mind starts getting worse and worse with wanting power and Daiki starts to doubt if that's the best thing he can do for Naoya since now he lost his mind.
Anime: Cross Fight B-Daman
Couple: Daiki X Naoya
Music: Jason Walker - Echo