Your point of view
'Hey punk! We're going to the seaside today. Wanna come?' Undyne asked.
'Ask which one!' Chara commands.
'Which one?' I asked her.
'The one near the cliff. Duh. That's our favourite, the water goes out so far.' She explained.
'We're going. I have 'big plans' for you!' Chara chuckled.
'Sure. Lets go.' I chirped.
'Yo Papyrus! Sans! You guys coming to the beach.' Undyne screeched.
'Yeah sure.' Sans said plainly.
'YES PLEASE UNDYNE!' Papyrus yelled.

~timeskip to beach~

Everyone set up their things on the sand.
'Tell them you're going for a walk!' Chara demanded.
'Hey guys, I'm gonna go for a walk.' I obeyed.
'K kid. Don't wonder off too far. Tori will have my head.' Sans chuckled.
'Sure...' I rolled my eyes. I started walking up the path to the cliff. I reached the Cliffside and chara made herself visible.
'Now jump!' She yelled pointing at the edge. She broke out into evil laughs as I walked closer to death.

Sans' point of view
I was sitting on my towel when I heard familiar laughter from the top of the cliff. I shrugged it off and closed my eyes. Next thing I hear shrieks of fear and everyone started panicking.
'Undyne get up there!' Papyrus yelled. Undyne started running as I opened my eye. I look up to where Undyne was running. A blue flame erupted from my eye as I saw y/n about to jump of the Cliffside. I wasted no time and teleported up to her and grabbed her before she fell.
'Ugh! You ruined everything! You smiley piece of trash!' A voice cracked.
'You! I knew I heard you!' I yelled.
'Yes trashbag. Its such a shame though. Because your little friend here... she's in my control.' Chara cackled.
'I will fix it!' I look at y/n and remembered what Gaster used to say in fairytales. I leant in and touched y/n cheek.
'You wouldn't dare!' Chara gasped.
I closed the small gap between me and y/n. I heard her squeak with surprise. I then pulled away.
'S-sans? Wha?' She stuttered.
'You fool!' Chara screamed. Y/n being scared, clung to my hoodie.
'I'll be back!' She chuckled as she disappeared.
I turned to y/n, whose cheeks where bright red.
'Ya k kiddo?' I chuckled.
'Don't test me bonehead.' She giggled.