Nijiiro no Candy

Desire has a price—.

Makoto Shindo was raised by strict parents. He goes to a good school, has a girlfriend, and was leading a smooth-sailing life that everyone envied. Then one day, he committed suicide.

He should have died, but Makoto found himself reborn in another world instead. There, he meets a witch named Isabelle. The greedy "desire" that he had buried deep in his heart before his death is revealed....

(Source: Bebe, translated)