He was frightened at first.
The bubbly, red-haired commander of an unknown army simply gave him a rehearsed greeting, and before he knew it he was stuck in the midst of a war. A mythical gun that could summon mystical heroes of the past was simply the beginning.
In the blink of an eye, Kiran found himself as the chief tactician of the Askran army. How he's lead such a magnificent group alone is beyond him. He's never have had any sort of tactical experience backing him up, nor does he have any knowledge of practical strategies for war. At first, he had to rely on the advice given to him by the Askran prince, Alfonse, and their lead commander, Anna. The kind-hearted princess of Askr, Sharena, reassured him that he was a legendary hero meant to be known as such. Being the wielder of the Breidablik was surely a sign of such. After all, not just anyone could shoot heroic beings from just anything. They were content in following his lead because of that. They all knew he would eventually become someone who could masterfully command an entire legion of heroes. Heroes who are all diverse, who come from different eras that treasure different values. It would be a mistake to not push the one who would become that very leader into the right direction.
Eventually, it got better. One day, as Kiran replayed his first few battles in his mind, something clicked. He lead more efficiently always making sure that the prince and princess were never in complete danger. He lead more aggressively by utilizing the strength that the commander employed. When he met the heroes that Askr had already aligned with, he lead more intelligently after figuring out how to combine their strong points.
Kiran gained tactical experience as the heroes gained combat experience. It grew more and more with the appearance of many more heroes gained through the Breidablik. He grew confidence in himself. And he grew confidence in his new comrades.
Suddenly, things changed.
Suddenly, he found moments away from the war.
Suddenly, he found a family within his heroes.
Days ago, Kiran and Laslow were talking about their worlds. When Laslow found out that the summoner was quite the ladies man (despite doing quite literally nothing to attract anyone), the Dancing Duelist immediately barraged the man with questions regarding what to do. He was only able to get away when two of the most capable romantics, Robin and Corrin, appeared and took his place.
He recalled the day when he held a crying Kana in his arms. The boy had been distraught over hearing the pain Nino went through with her own mother, which made the dragon feel guilty and selfish for parading about the praise of his mother without thought. Kiran smiled. The two children grew closer as a result of their encounter together.
The Panther and Bull archetypes of the many worlds gather together and train, in hopes of becoming stronger and more proficient with their weapons. They compare their personalities with each other, finding the same fine points and flaws and humoring themselves with stories of adventure. Sometimes Kiran will join and tell them about the cavaliers of other world who are like them. He personally wishes Lance could appear soon.
Jeorge and Innes conduct a joint practice together alongside the other archers. The two have made a point to Kiran about the importance of keeping archers on their toes (even though the individual training is, quite literally, nothing compared to when Kiran brings them to the special training missions). They've made sure to correct the personal flaws that each archer unit had, including personality flaws that get in the way of performance. Kiran once got an extensive report on Takumi's pride, including on recommended steps to take in order to fix them.
Once, he chanced upon an unusually aloof Marth. His hair was messy, hardly the slick, dignified style he normally wears. Falchion hung awkwardly from his hip, and his cape dragged on the floor behind him. Kiran took the time to adjust the Altean Prince's cape, lifting it up to his collar, then clawed his hair as best as he could. Marth rubbed his eyes and yawned as the doting summoner tended to him. When the Falchion had been readjusted, Kiran led him to the mess hall and searched out for Jagen, hoping that the Veteran Knight could look after the prince.
They all saw the summoner as family. Whether he served as a father figure, a sibling, and in some cases as a motherly replacement (he is very gentle with the children), there is always a familial role he could fill. Deirdre had asked of him to watch over Seliph as his guardian. Odin dramatically begged him to be Ophelia's brother. Hector forcibly made the summoner into his daughter's teacher. Gordin once called him "father" without realizing it (something which Kiran remembers fondly), and Bartre said that he treats him as a son. Karel and Karla see him as family, often allowing him to watch as they train.
Kiran found himself smiling everyday in the presence of the heroes. HIS heroes. He realized how important they had all meant to him. His fear of his own capabilities as tactician had changed to fear of losing his family.
Yet, it was a fear that empowered him all the same.
"And so you've taken it upon yourself to make sure that they're all happy, all the time?" Alfonse asked.
"Exactly," Kiran replied with a smile. The prince sighed. He knew that his friend was sentimental enough to place such an unnecessary responsibility on himself. That's what he liked most about Kiran, after all.
"I'm sure you already know my thoughts about that, so I won't say them."
"Alfonse, I know that you're worried about the idea for my sake. The hero you were friends with hurt you, I understand. But I-"
"Want to give them the chance they deserve, I know. Not all the heroes lived a happy life after all. They deserve happiness, even from strangers like us."
"You know me so well, Alfonse."
The prince smiled. He wouldn't want Kiran to be any different.