Tensei Shitekara 40-nen. Sorosoro, Ojisan mo Koi ga Shitai.

Four decades have passed since Girold was reincarnated into a new world, and he has spent that time pouring his energy into his duties as a guild leader. Through years of relentless hard work and dedication, he has built a respectable life for himself. However, upon reflecting on his journey, a glaring omission becomes apparent: despite all his professional accomplishments, he has never found the time or opportunity to marry. Determined to change this, the middle-aged adventurer sets out with renewed vigor to find a girlfriend, only to discover that romance is far more elusive than any quest he has ever undertaken. Convinced that his age and lack of charm make him entirely unappealing to women, Girold resigns himself to a life of solitude. Yet, his self-deprecating assessment could not be further from the truth. Unbeknownst to him, the women around him are actively seeking ways to get closer, captivated by the very qualities he believes make him undesirable. What follows is a charming harem romantic comedy, originally serialized on Shosetsuka ni Narou, where an oblivious older man must navigate the unexpected affections of those who admire him most.