Adult PC Game: Divine Iron Awakening Netorareasu by Glass Archive

A mysterious army of machines suddenly invades the human race.
To fight against their invasion, Wiz and Hikari decide to ride Netraleas!

Netraleas is a robot that becomes stronger with the complex emotional energy of its pilot.
In order to demonstrate its true potential, Wiz and Hikari make a proposal to the two.

The idea is to film a video of Hikari being cuckolded in order to stir up Whiz's emotions...

Divine Iron Awakening Netorareasu by Glass Gameplay Preview