Age of Cosmic Exploration - Chapter 26: THE ENCOUNTER!

When a young woman is killed in a traffic accident on her way home from work at a tax bureau, she suddenly finds herself transported to the world of the otome game she was playing the night before – but instead of the heroine, she’s been reincarnated as the bad guy! Using her knowledge of the game, “Iris” manages to avert personal disaster and decides to rebuild her life with her modern-day economic know-how. This is one mean girl who isn’t going to let her perceived reputation stop her from being a heroine!

Hello, my fellow Tsunade enjoyers!Tired of MCs collecting more sharingans than Danzo?Had enough of Uchiha revenge plots and Konoha crush plans?Feeling hopeless because of yet another self-insert, wish-fulfillment garbage?Fear not!This book will recharge your Tsunadium daily!Enjoy real romance and peak comedy.Your favorite tsundere heroine is here!What are you waiting for?Get your Limited Edition today—only for 699 ryo!*Sincerely yours,Kakuzu.*(NO REFUNDS)---What to expect:Romance+comedy combo, with Tsunade as the female lead.MC is strong from the start but plays a supportive role.Not a system novel, though the MC technically has one.MC is a slacker and a flirt, but there’s no harem.Add to this a slight take on Hokage duties and politics.---It’s a translation, by the way, but I cleaned it up a bit.All credit goes to the original creators.Upload schedule: 1 chapter a day.If you're looking for the raw title or MTL, check out my pinned review below.

The aliens came with hostility.
Facing the invasion of aliens, human beings are weak like ants.
So this is the end, the real end.
But there is resistance when there is an invasion.
For some, this is not the end, it is war.
So this is war.
Real war!

- Description from Qidian