A/N: Surprisingly this chapter didn't need much editing. I've been a babysitter since I was teen so this was the easiest chapter to write.

Disclaimer: I don't own Katekyo Hitman Reborn! *quietly sobs*

His Little Tsuna-Fishy

For the first few weeks Tsuna didn't do much other than sleep and nurse. Iemitsu always dreamed of having a son that he could play ball with. The fact that he would have to wait a few years for it to be possible had slipped his mind. When Nana would pass Tsuna over to him, his son would usually fall asleep on his chest. Being a man of action, staying still for long periods of time was... awkward.

Iemitsu scrunched his nose in disgust as he had to face a horror much worse than a crime scene: a dirty diaper. Tsuna would stare up at the over dramatic look on his father's face and giggle. "We are teaching you to use the toilet as soon as humanly possible." Iemitsu grumbled, wishing that he'd gone to the grocery store instead. All Tsuna had to do was smile to get his father to turn to mush and forget his complaints.

Iemitsu had the habit of leaving the changing supplies out of reach, often leaving Tsuna to lay on the couch as he hunted for them. One day while he was searching he heard a thud and a loud wail. "Tsuna finally learned how to roll... and fell off the couch. You're alright little man, Daddy's got you!" In his haste Iemitsu tripped over Tsuna's drum, which he really regretted buying, and landed inches from his son. The crying stopped as Tsuna looked at his father on the floor. "Oops, Daddy meant to do that!"Iemitsu says with a loud chuckle. Tsuna hadn't understood but tried to imitate his father's laugh, only getting out a weird sounding gurgle.

Iemitsu also learned that when his son was hungry that he better have something on hand, or awkward things happened. "Tuna! I am not your mother!" Iemitsu yelped in embarrassment as the baby clung to his shirt and was desperate to eat something. This lead to Tsuna trying to eat Iemitsu's shirt. Nana giggled in amusement as Iemitsu handed Tsuna off to her, complaining about the new stain on his shirt. "At least you didn't shake him again. You had to throw out one of your favorite dress shirts." Iemitsu pouted. No one told them that if you lightly shook a baby that they would spew like a can of soda after feeding. Tsuna had been so startled that he started to cry.

As Tsuna got older, he started to interact with the world more. In his excitement Iemitsu had bought a jogging stroller for his son, weaving through the Namimori streets with a petrified Tsuna frozen in his seat. Iemitsu always wondered why Tsuna always fell asleep during their "walks" but chalked it up to his son being relaxed. Iemitsu had been on leave for three months when someone from CEDEF finally managed to track him down. "What the hell are you doing? You're needed back at headquarters!" Lal Mirch scolded, startling when she heard a cry from inside the house. Iemitsu completely ignored the Arcobalenco in favor of picking up his son, rocking him back and forth.

"Could you yell at me at a later time? Nana went shopping so I'm looking after my son. Which you just woke up from his nap. Do you know how long it's going to take for him to settle down again?" Iemitsu demands, glaring at the woman. Tsuna still had tears in his eyes when he looked at Lal Mirch, making her feel very uncomfortable. Stuck in a child's body, she was unable to have children even if she wanted to. She looked at Iemitsu's hand and saw a wedding band, wondering why she hadn't noticed it before. "So, you're settling down with a civilian?" Lal Mirch asks quietly. Iemitsu sighed, running a hand through his hair.

"Honestly I was just planning to stay here for as long as the doctor said was needed for us to bond properly as parent and child. Nana knew that I worked overseas and that I wouldn't be here all the time. But Tuna-fishy doesn't understand like she does. I don't want to leave him." Iemitsu's voice cracked and the usually confident man looked ready to cry. He loved his family but he felt, trapped. Constrained. Before Nana he was married to his job.

"I can cover for you for two more months. After that you're on your own." Lal Mirch states, Tsuna looked at her curiously and reached out to her. "Aw! Tuna-fishy wants you to play!" Iemitsu cooed, handing Lal Mirch one of his favorite toys. It was a plastic fish that Tsuna often chewed on instead of a pacifier. Given who Iemitsu's co-worker was he could only thank the heavens that he thought ahead, just in case the woman tracked him down.

Before Lal Mirch left, she demanded that they find a way to create a safe environment free of assassins wanting to target his family. This lead to Iemitsu inadvertently implying that the Hibari clan wasn't enough to protect Namimori. If seeing Fon enraged wasn't terrifying enough, seeing a clan with an eerie resemblance to him chasing Iemitsu gave the man nightmares for weeks. The two year old was especially vicious, latching onto his ankle with his teeth. Iemitsu swore on his grave that he would never tell anyone that he was scared by a child.

XoXoXoXoXo

It was after Tsuna turned one that Iemitsu started integrating himself back into his work. There wasn't much paperwork, thankfully, as Lal Mirch decided to send the papers to him on a weekly basis. She would head over to the house if there was an urgent matter, silently putting up with a curious Tsuna. There were also some moles in CEDEF who tried taking advantage of his absence, only to receive a fist to the face. They were then tortured to retrieve the names of their fellow conspirators. With his own family under the guise of the CEDEF and his own personal family, he was not taking any chances. And if he had his way, his darling Nana and adorable Tsuna would never become involved in the underworld.