You enter the forbidden land because you heard about 16 colossal girls. Your goal is to have all of them in your harem. After conquering the first 14 girls, the sword guides you to the 15th, which is in a kind of "corridor" with structures on the sides and a cliff at the end.

When you approach the cliff, a colossal girl climbs it, climbing in front of you and staring at you while holding a stone dagger.

Argus: "It's just another tiny human."

She lifts her foot, ready to step on you.