Sakura and Shikamaru Genin Fanfiction: How can their personalities be developed in the story?

"Locke transmigrated into an era where everyone had Battle Beasts. Daemons were rampant and humans were forced to build walls around their dwellings while depending on Beastmasters to keep those monsters at bay. It was time for academies to open their enrollments and Locke only had a small snake that everyone claimed was useless! ""A snake? Isn't this just a normal snake? What a useless Battle Beast."" ""What potential can a snake have? Even if it evolves into a two-headed snake that's still only Level 1 strength. You might as well continue living like any other normal folk."" ""Who are you kidding? What makes you think you have what it takes to enter a Beastmaster University?"" Locke stayed calm as countless classmates and teachers mocked and made fun of him while he turned to his System's interface. ""All Beasts Hidden Evolution Paths!"" From a Two-headed snake to a Fire-and-Ice Two-headed snake... Then to a Demonic Shadow Snake... a Bright Serpent... Before finally, evolving into Medusa..."

Condition 1: Collect 1 Yellow Turban Soldier’s Rune (Completed) Condition 2: Defeat 100 Runic Monsters Solo (Completed) Condition 3: Kill Wild Boars in One Strike 5000 times (Completed) Condition 4: Consume 10 Runic Pills (Completed) Your Rune Can Now Be Upgraded.

Li Yuanqing transmigrated and became the crown prince of Northern Kingdom. He was sent to the borders, after his cultivation and meridans was crippled, because he refused to marry a princess and was not allowed back into the palace ever. Just then, the Hundred-fold Sign-in System was activated! Outside his house in the Wilderness, he signed in and received 100 Replenishment pills! Beside the lake of the Wilderness, he signed in and received 100 Marrow Cleansing pills! Among the warriors of Myriad City Kingdom, he signed in and received 100 Heavenly Skill manuals! ... Li Yuanqing had thought that if he just signed in silently and received the hundred-fold reward, he would be able to watch over his younger sister until she became the ruler of the kingdom and until he became invincible. But he had never thought that one day, the queen of Myriad City Kingdom would come to meet him! "I am willing to use Myriad City as my dowry. Will you marry me, Your Highness?" Li Yuanqing did not know what to do when he looked at the queen smiling beautifully before him...

When Fang Yuan was transmigrated into a world where Gu Breeder was the main profession, he found that he was not gifted. Not only that, the Gu in his body could cultivate on their own. [Your Iron Skin Gu has trained profoundly and has achieved the Gold-grade!] [Your Bloodthirsty Gu has begun to multiply itself into a swarm of Bloodthirsty Gus!] [Your Sunlight Gu has been absorbing the power of the sun for years and has gathered the Truth Flame of the Sun!] [Your Drunken Gu has evolved into a Soul-reaping Gu. Your control over it has risen by 100 folds!] [Your Flying Sword Gu was hurt in battle. Amid its desperation, it has evolved into a Sword God Gu!] “Heck, even Gu undergoes involution as well now?” Fang Yuan let out a sigh.

Reincarnated as Sakura and the Journey to the Peak of the Elemental Nations.

Being killed wasn't the best thing to go through, especially if it's a slow and painful one, but I guess I did get reincarnated because of it, so I guess it's fine?