What OST is played at the beginning of Naruto: Shippuden episode 489 after the OP? I am referring to Shikamaru's Story, A Cloud Drifting in the Silent Dark, Part 1: The State of Affairs episode.

I played through the beginning of all the OST from the three albums of Naruto and the three albums of Naruto: Shippuden yet I can't seem to find it.

Is it from a different album or is it a part of an OST? (I haven't listened fully to most of the OST from the six albums).
This is Shikamaru's Lazy Cloud theme song. It was never officially released