Luigi walked home from the Gloomy Woods Toad Village with a sack of groceries. He walked into his D rank mansion and was greeted by an excited Polterpup, spilling his groceries everywhere. "Heh-heh. Okay Polterpup, I love you too." He then started picking up groceries, with even Polterpup picking up a few cans. Polterpup then noticed a bouquet of flowers. "Yeah, I-a bought them so I could give them to-a Daisy this Valentine's day." He then baked a frozen mushroom pizza he bought at the store and poured some special ecto-dog food E. Gadd invented for Polterpup. "I tried not to buy a fancy expensive bouquet, since I won't-a have the nerve to give it to her anyway."
Polterpup loved Luigi, but wished he had more confidence. "Luigi took the pizza out of the oven and said, "Wouldn't it be something if I were to give that bouquet to Daisy? And wouldn't it be something if she game me a big kiss. And wouldn't it be something if it turned out pizza was good for you. Because I think the chances of all three are the same." Polterpup shook his head. Polterpup looked at the bouquet that said, "From Luigi. To the prettiest flower of them all." Polterpup picked them up and took them outside. "Polterpup. Give that back." Luigi hopped into his standard kart and drove after him. He eventually saw Polterpup walking across the ocean. Luigi grabbed a miniature oxygen tank and put it in his mouth. He pressed a button and a propeller came out the back of the kart.
Eventually Polterpup made it to a place, allowing Luigi to get back above air. He was on an island that looked like China. In the distance he saw an island like Easter Island. And an area on the Mushroom Kingdom's continent that looked half like Egypt and half like Mu...He was in Sarasaland. He saw his ghost dog running up to a castle and going inside.
Inside, Daisy was watering her prized flowers, when she saw Polterpup walk in with the flowers. "Hey Polterpup, what's up? Shouldn't you be at Luigi's Mansion?" Polterpup handed her the bouquet. "These are heavenly. Did you pick them out?" He shook his head and pointed his nose to a tag. Daisy read it. "So you're owner got them? I'm guessing he didn't have the confidence to give them to me, and you took them here for him." He nodded.
Luigi suddenly ran into the room. "Daisy, I'm sorry about the flowers." "What's to be sorry about? I love them." "Yeah but, I'm not sure if you love me. I'm nothing like my brother. I'm a hopeless loser. I really do like you, but there's nothing to like back." "What are you talking about? You're Luigi. You conquered six mansions filled with ghosts, you saved a mythical race and their island in your sleep, heck the Toads decided to give you your own year." Luigi suddenly got some pride. "Look, you're not your brother. Not even a little. But you're just as awesome. Not in the same way, but you're great." She kissed him on the cheek. Luigi was filled with happiness. "Come on. I've got a nice vase with these flower's name on them. Afterwards let's grab a bite. I heard there's this new pizza that's delicious, but good for you."