My Sister Your Sister 2

On an isolated island on the edge of Denmark's territory, exists the HQ of
International Environmental Assistance Organization JOINUS

In a mere 15 years there work restoring the ozone layer, purifying the oceans and reforesting the earth has made them a United Nations Approved Environmental Assistance Organization.

But JOINUS has another face.

A Special VIP Protection Organization: The Mirage Corps

Their job is to protect important persons from the threats of terrorism, mafia, assassination, etc. Their payment method? "Reward = Life" and their members? All females, in their 10s and 20s.

Our protagonist is Monica Erdklein, 19 years old.
An advanced member of the Mirage Corps is given a mission.

"Head to Japan and protect the Taker (VIP)."

What awaits Monica in the land far to the east and what will be her fate?