N1

にまつわる

Surrounding, Related or relating to, Associated with, Connected to

この

星ほし

に

まつわる

大きなおーきな

謎なぞ

。

The great mystery surrounding this star/planet.

関係がある

(Not) involved with, (Not) concerned with, (No) connection with, (No) relationship with, (Not) related to

にかかわる

To relate to, To have to do with, Concerning, Depends on

に関する

Related to, About, Regarding

それ

Refers to something physically close to the listener.