Transmigrated as a fool guide

Mahiro worked at his company with full belief of taking it towards top position in the world but the day he achieved that height he was murdered by his own brother he never known that he was been kept by his
parents murderer the day he died there was a large thunderstruck at Rein's family villa and the jade has been disappeared when he opened his eyes he came into installer world where there gender's again divided in three sentinel,guide, ordinary people
when he was walking like a fool in garden suddenly thunderstruck fall him and he fell down . When he started to understand installer world he saw everyone has spiritual animal who lives on land but he have dolphin .
And he have to act like fool like original owner to walk out from his stepmother and father family