Dungeon: My Clearance Reward Is My Big Sister

If I say that there is a chance of getting a hidden reward by clearing the dungeon, and the reward is blond hair and big waves. What would you do? This is a modern world similar to Blue Star, but there are dungeons of different sizes. Most people choose to attend dungeon-related academies during their student days in order to become official adventurers after graduation. While exploring the dungeon, Zhang Yun was plotted by his classmates. When his life was in danger, he awakened the dungeon strategy system. Do you want to consume Gargoyle Lord Cores to summon? Congratulations, you got the A-level war doll maid! Does it consume Centaur Lord cores to summon? Congratulations, you got the S-level Headless Horseman Sister! . . . . . What? Do you need to form a team to conquer dungeons? Zhang Yun directly summons countless beautiful lords, one person is an army!