Shall we date?: Ninja Shadow Her One and Only Love (2016)

Now included in the "Dear Otome" app.

Storyline

“Are you...a girl?” You secretly join an organization as a shadow of your brother. One of the senior ninjas become your instructor to support you. The feeling of trust eventually turns into something else that you start to see him more than just an instructor. Are you going to hide the secret or tell him the truth? The more you spend time with him, the more he grows on you... The new world of ninja awaits you!