Transmigrated into a transmigrator

An otaku walk to store to buy groceries. When he was at the junction he was struck by lightning in a clear weather without clouds. *blink**blink* as he opens his eyes he found himself in a white world where he meats God and gets some wishes. Did you think this is the whole synopsis well it is half of it. A young man was walking down the street toward a library. Hoping to graduate in medical sector he needs to study a lot.He was stabbed to death by a robber while saving a girl. *blink**blink* he finds himself in a white world.