I Have Seven Big Brothers - Chapter 498: Second brother’s laboratory

... sampling before you can enter smoothly.

So strict.

"I'll take you to get acquainted first, and get to know my brother's partner by the way."

"This is the reference room, and there are some research materials in it. It's best not to come here for Nuan Nuan. If the materials are accidentally messed up, it will be very troublesome to sort them out."

The kid nodded obediently next to his brother, remembering, remembering, not coming here.

"Return this room, t ...