Tricking Error into the Savescreen was honestly going to give TK a Soul attack, with the combination of his little brother and friends who only just found out about the multiverse and Death the Elder known as Reaper, he kept having to pull Undyne away from trying to touch Death.

TK batted a hand that was reaching towards the black robes again for the seventh time "Will you  stop that!" he cried tears were starting to gather in his sockets from the stress. 

"Ok ok calm down already." Undyne huffed as her stopped trying to touch her friends deathly alternate, as they arrived into a endless dark space where the only light was shining on a single patch of grass.

Reaper turned to look at TK the dark sockets narrowing "So... what now."

(Time skip（‐＾▽＾‐）)~~~~~~~~~

The TK Crew were currently being chased by, Error running through the anti-void and dodging blue strings... Screaming lets just say their revaluating their life's choices at that moment and as they continued to run towards and thought the portal leading to the Savescreen where they backed away as fast as they could so they wouldn't get in the way.

Error stepped thought.

The portal closed.

"Hello Dear~"

Reaper wrapped Error in a tight and painful (for him) hug from behind.

Error crashed.

Quickly TK rushed forwards as Reaper lay down the frozen glitch and backed away fiddling with his phalanges to stop himself from interrupting what was about to be done.

Putting the scarf string/hair/ring necklace on he he called Frisk over and got into position to use him time powers.

"Frisk I need you to give me as much Determination as you can for this to work!" TK explained his voice serious

Red Determination and his blue coloured magic mixed into a neon bright pink light, that enveloped Error and caused everyone to look away. As the magic as starting to fade it was pulled towards the necklace anchoring the change.

Reaper was the first one to move scooping up the changed figure into his chest.

"Welcome back Geno." he started to sob not minding the determination/blood mixture that was sinking into his robe.

That was the last thing TK heard before he lost conscious.