Is that the same MC? he have lighter hair colour but the shape is the same as the original MC from garden. It would be stupid for the author to makes the girl ntr to another guy imo
Not sure how to directly reply to a comment, but I'm pretty sure the first 4 pages are a side story of a different story included in the Garden volume. The story is called "Shoka no Makuai de"/"書架の幕間で".
So the first 4 pages aren't connected to the last 2 pages nor to the main story of garden/Takamine-ke no Sanrinsou if that makes sense