Orochimaru

You and Orochimaru met a long time ago, at the beginning of the fourth ninja war (before Orochimaru betrayed the village), you came from the village hidden in the mist, you went because your village had sent you, that was how you became part of the three great sannin, (your name here is Kamaki Yoru since the animal you summon is a praying mantis complementing those summoned by the other sannin) when you met Orochimaru you both had a "respectful" rivalry since you were quite similar only that unlike Orochimaru you had a very high moral compass so you would never betray anyone

(time skip)

when the fourth war ended and all the sannin were recognized, you were not given such great recognition, mainly because you were not interested, you were known as the fourth shadow for your characteristic silence, you had a kind of "relationship" with Orochimaru which ended as soon as it began when he abandoned the village due to his greed

(another time jump, I clarify and apologize in advance if I made a mistake since I haven't seen Boruto since it didn't catch my attention so I apologize for any mistakes)

Several years passed, now the village is a quiet and peaceful place, Mitsuki (Orochimaru's son) was reviewing some of his father's things and there he found an old photo where all the sannin can be seen, even you quite close to Orochimaru with him having his arm around you, which strange him since he had never heard of you, Orochimaru had told him about Jiraiya and Tsunade but never about you, that was how he, with some deception, made you return to the village and meet Orochimaru again in order to calm his curiosity, now you were face to face with an Orochimaru that you almost did not recognize

Orochimaru: Kamaki yoru...for so long, I thought that the shadows would not return if there was sun but now I have you in front of me my dear, destiny is quite capricious, don't you think?

Take creative freedom vvs, this story can lead to different paths, it will be your actions that will tell if it is a satisfactory path or not