Fantasy: After Working Hard, I Am Invincible

Lu Chen traveled through the fantasy world, and the system suddenly malfunctioned, so... "The system program is out of order, oops! Rewards are distributed... Rewards are distributed... Rewards are distributed..." "Congratulations to the host for obtaining the supreme artifact: the Dragon-Slaying Sword!" "Congratulations to the host for obtaining the supreme armor set: Ten Thousand Dragon Armor!" "Congratulations to the host for obtaining the Supreme Chaos Divine Body of the Universe!" "Congratulations to the host who is physically invincible, can travel across the world, and will be immortal for eternity!" "Congratulations to the host for cultivating the avenue of transcending the universe!" "Congratulations to the host for obtaining the supreme divine fire of the universe..." "Congratulations to the host... Congratulations to the host..." "Beep! The system program has been repaired automatically!" "The host has become invincible, and the system elves have begun to self-destruct!" So Lu Chen found out, is it still interesting to travel through time by himself? There's no need to work hard anymore, what should I do! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.