Strategy for Time Travelers Not to Die

I, the time traveler, don't want to cause trouble. A sick girl is precious, but her life is worth even more. If you are arrogant, you can throw away both. Looking at the swordsman girl with a hidden smile, the sexy female mage with a cold face, the literary girl with crazy hints, the silver-haired dark elf who sneered... Maybe I won't live long. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.