Become Invincible by Killing Vampires

[Original world, invincible at the beginning, pseudo-infinite flow] Half a year passed, and everything was calm. Xia Ye originally thought that Source Star was a normal world. But what would it be like to encounter a vampire on the first night of summer vacation? "Go to hell!" So, the vampire died. "It is detected that the host encounters a demon, and the god-level demon-killing and demon-killing system is being activated..." "Activate your uncle! If I don't come out when I encounter a vampire, it will be useless if I come out! Destroy it for me!" So, the system exploded. "The dimensional chat group sent out an invitation to join the group. Do you agree?" "You can have this, agree to join." Makoto Dagu: "Xiaye, Gatanjie has become a twin, please support me!" Xiaoniao Youliuka: "Brother Xia Ye, there is an evil time traveler here. It's so scary!" Senjougahara Heiyi: "Natsuya-kun, the weird king wants to destroy the world, can you come and stop her?" Coros Linxi: "Xia Yejun, the floating city has appeared, Liberia's national guidance has stopped, and the Erebonian Empire wants to take advantage of it, please help me!" Tony Stark: "Brother Xia Ye, the director of the Cosmic Women's Federation is here. Come and help me fight against him. The Infinity Gauntlet belongs to you." Bruce Wayne: "On a summer night, Clark turns dark. Can you help me wake him up?" … Xia Ye: "No problem. Leave it all to me!" Everyone: "It's great to have a big boss in the group, I can lie down!"