I'm in Azure, I have an anti-fraud APP

Levi travels through the Azur Lane and becomes the sole commander.
Facing the beautiful ship girls.
Levi got a mysterious APP, which gave him various tasks every day.
As long as you resist the temptation of the ship girls, you can get various rewards.
"Mission Condition: Take Care of Belfast's Shoulders"
"Task Reward: Improve Physical Fitness"
Levi:
"It's just nursing care, what's the problem?"
"Just wait, you shipgirls with ulterior motives."
"When I improve my physical fitness, I will become your nightmare."
Belfast: Commander, you gave up so quickly~
Li Wei: No, I can’t stand it at all…