I'm Only E-Level, What's Wrong with Having a Yuan Lord as My Backer?

[Hot-blooded] + [High martial arts] + [All members protect the weak] + [Decisive killing] + [No system] + [Miss] Shiye, who has been guarding the mountains for generations, finally passed the exam for the top martial arts master in Huayang but couldn't go. In order to verify his family's thousand-year motto, he climbed up Jiuyuan Mountain and pushed open the stone door. Even if he, Ishino, dies, he still has to see what happens this time to see if there is any so-called Lord of the Abyss inside! But when the stone wall was opened, there was actually a Miss Abyss Lord who had been sleeping for thousands of years. The eldest lady is beautiful, cool and arrogant, but when faced with the school's cold eyes on him and his classmates taunting him, the eldest lady slaps him away. From then on, Ishino had a backer and a goal. The seven major families took away the eldest lady's things back then, and he wanted to take them back one by one for her. On the way back, Ishino gradually discovered—— Even though he was called a waste, his eyes could see through all sources. The so-called E-level is not enough to judge him. And he seems to have countless connections with the eldest lady...