It is the year 833 of the Imperial Era. A mysterious wave emanates from a mysterious tower that suddenly appears on the outskirts of the Imperial City. All of the women who were affected by the wave were all transformed into big breasted beauties while the men watch in awe.

However, this phenomenon also brought about various disasters at the same time. Because of the sudden increase in her breasts, Lufia is unable to wear armor and unable to keep her footing. The female elf knight went to a mysterious tower on the outskirts of the Imperial Capital to solve the case...

She takes on the challenge of the mysterious tower on the outskirts of the imperial capital...the Tower of Boin.

-Traverse the Tower of Boin with your heavy chest.

-A dynamic mix of 3D and 2D pixel climbing action!

-Play 4 modes from 'Flat' to 'Busty' with over 300 steps!

-Unlock 5 sex scenes from the Tower of Boin, animated and scripted.

-Infinity mode to challenge your endurance of the tower!

-The ultimate time passing game with busty boin front and centre!

-Share your score on Twitter to be the true leader of the tower.

This Game may contain content not appropriate for all ages or may not be appropriate for viewing at work.

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