The final boss-like older sister caught a cold, so now is the only chance to defeat her.

"Even I cannot overcome illness......" The final boss-type older sister living next door has caught a cold!? What awaits when you lend a helping hand to the older sister whose self-indulgent lifestyle has caught up with her── ※You can manage even without reading the previous work "The Final Boss-type Older Sister~," but reading it will make you happy. ※You won't die if you haven't read the work before that "The Final Boss-type Older Sister~," but reading it will fill you with vitality. ※If you start reading from the one before that "The Final Boss-type Older Sister," you can have peace of mind in your old age. I've written it in the Kojiki as well.