A man who loves the "depressed development" where the protagonist's body and mind are beaten to their limits, only to rise from despair towards a Happy End, died because of a Goddess's Miss. As an apology, the Goddess offered to reincarnate him, so he wished for a "world where he can watch depressed development live." However, due to a misunderstanding, he was born as Lyra, the Prince of a super peaceful country with "no war and no bad government"! Reaching his limit in a life lacking depressed development, Lyra sets out in search of the depressing developments he has yet to see――!