Joy and Justice

This hard Sci-Fi novel is the third book of the "Time-Flow Stories." This series of tales is about Witt Ryllin, a young man who abruptly gains the ability to psychically control the flow of time.
It's also the sixth story in a combined series of stories that begins with the novelette "Porter" and the two "Blindspot Stories."
In this book, Eva (Allie Dans) invites Witt to join her band EOD (Eve of Destruction) on a trial basis. When she's attacked by an overenthusiastic fan one night, she protects herself using her ability to form small ports.
Witt quickly recognizes the presence and power of her psychic talent.
Then, when Ruchia invades Ucryn, Roni, and Hax decide that assassinating Pootin might stop the war. They recruit Witt to join them because their combined abilities should make such a task much easier. When Eva finds out about their plan, she wants to come along.
As if his plate isn't full enough playing in the band and heading to Ruchia, Witt's still running track, taking classes online, excelling at math, and helping his sister thrive.