Tensei Kizoku no Isekai Boukenroku ~Jichou wo Shiranai Kamigami no Shito~ is a Manga/Manhwa/Manhua in english language, Action series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.cc fastest updating comic site. The Summary is

Shiina Kazuya, our protagonist who got killed by a stranger when he tried to protect his childhood friend and little sister, reincarnated into Cain Von Silford as the third son in the world of sword and magic. Cain grew up being surrounded by Gods who don’t know self-esteem, the upper noble and the girls who are swayed around him. Being given so much protection from the gods, he overcame any obstacle (aka Flags) while hiding his unbelievable status. The noble path fantasy story of a young boy who is wicked and clumsy from time to time.