The Vein Wars

In the year 2040, Zeta Tech unveils a groundbreaking medical nanodrone that can be injected through a needle into a blood vessel to proactively remove stubborn bacteria that cannot be removed by normal medication. The nanodrones are not yet trusted by the public, and Zeta Tech is now planning an online stream for the public to prove the effectiveness of the nanodrone by a real operation.

Congratulations, employee, you've been chosen by the company to be the operator of a medical nanodrone, based on your precise surgical mechanical maneuvering skills. The success of the nanodrone is now all on you.

The code and arts are fully from humans and original, without using  any AI.

Four different ends for 2 fails and 1 normal happy end and 1 perfect happy end.
The perfect happy ending only requires the patient to have full HP until the end..