Akiba's Trip

 Akiba's Trip is a video game series that received an anime adaptation in 2017.

The series follows Tamotsu Denkigai, an otaku teenager who is shopping in Akihabara, Tokyo with his sister when suddenly, without warning, vampiric cosplaying monsters known as "Bugged Ones" run rampant throughout the city. Tamotsu is rescued by a baseball bat-wielding girl named Matome just as he's about to be attacked by one of these creatures.

While fighting together, Tamotsu and Matome notice that the only way to destroy the Bugged Ones is to rip their clothes off and expose them to sunlight, however, whilst protecting Matome, Tamotsu gets fatally injured by a Bugged One. Unaware to him, Matome is actually a high level Bugged One who is trying to protect the city, thus she revives him as a high level Bugged One after being left with no other choice.

OP
Tamotsu's shirt flies up.

Episode 2
Tamotsu's clothes are damaged.

Episode 4
Tamotsu's shirt is torn off by a microwave attack.

Episode 5
Tamotsu takes part in a fighting game tournament in order to rescue his sister.

Episode 9
Tamotsu challenges a Bugged One to a card game.

Episode 13
Tamotsu's clothes are gradually torn off.