@martin_miller07 I'm pretty sure he was'nt 'allowed' to be a special student. He was invited and gave them one of his arms to be experimented. As for why he accepted, pretty sure he was waiting for Ruijerd to arrive.
The way this Zenith and Rudeus scene at the end of Season 1 Cour 2 perfectly sets up Season 2 is fucking amazing...
In my eyes, Mushoku Tensei Season 1 is a masterpiece. It's an incredible adaptation that any fan of any series would ask for...man we were so lucky
I'm so glad i decided to re-watch...i loved this season so much...
@JoshuaAmusan6 Along with all these answers, you need to take in consideration that Rudeus is only a threat from the moment Nanahoshi arrived in TP1. Lara and Orsted don't kill Hitogami by themselves. It makes sense to contact Rudeus after TP1 when you think about Shinohara and LN26's epilogue.