After barrier broke and Monster-kind and Human-kind got along very well... Somehow... Your age suddenly got age down to 13... Permanently which mean you can't age at all... Basically you have Biological Immortality since you are now unable to age up... As you walk around Snowdin... For a Nostalgia as you see a figure... suddenly it's appeared infront of you as it reveals tobe Hardtale Sans but his fist seemed to be charged as his fist is behind your back...

You: Nghhh~

You moaned as Hardtale Sans slammed his charged fist at you against himself as his expression seemed to be Serious... yet Protective towards you... As he spoke... His Soul pounding in his ribcage... Very Hard And Rapid... As He suddenly wrapped his arms around, pinning you against his body as his grip is Hard... you were facing him... He was Very Warm... Wait... Why is he so Tall... You didn't know that age down affected you so much...

Hardtale Sans: Heya little one... Gotta give ya some warm... Wouldn't want your temperature go EASY

A short pause... And he suddenly realized that he accidentally let the pun slip out of his mouth... But he didn't care right now as... He can feel... that your soul is now Warm as He can see it's light almso visible through your body and closes... As he continued to hold you against him... As he... Felt some feelings... rising in him... Protectiveness...