During the second year, Elder Aku was training and teaching Yu about her Sword of the Angel and the two special forms dedicated to the sword: Holy Angel and Holy Knight. "Both of these forms can give you very powerful attacks, but to use the forms, you have to train with the sword. Now, come at me with the intent to kill." Elder Aku ordered. Yu grabbed the sword and she danced around with Elder Aku. Her attacks never landed, but Elder Aku was dodging Yu for a reason. Her attacks are not planned out. He thought, stopping to not dodge her next attack.
"I got you!" She shouted, about to swing the sword on Elder Aku's head. However, Elder Aku grabbed the sword, shocking Yu as she had never seen anyone grab a sword with their bare hands. Elder Aku then sent an electric shock through the sword and to Yu. Yu screamed in pain at the electric shock as it stung. Is that how people felt when I attacked them with my electric-based attacks? Yu wondered as she stopped screaming as she just decided to take the pain.
However, because Yu was also electric-based, the attack stopped hurting and it just gave her an energy boost. Yu absorbed the electricity from Elder Aku's attack and she made the Sword of the Angel an electric Holy Sword. Elder Aku smirked at this as he noticed Yu's stance. She is ready with the intent to kill. He thought, waiting for her to attack. Yu slashed the sword forward, causing electricity to fly out of the sword and come racing out towards Elder Aku.
Elder Aku let the attack hit him, but unlike Yu, the stung was still there even though he is a electric-based attack person. I can't absorb her electricity even though she can absorb mine! He thought in horror. Yu punched Elder Aku with her Lightning Punch and he felt the blow from her attack. Yu screamed into the sky as the sword lost the electricity and Holy Angel then appeared! Light, bright light was covering Yu's body as her angel wings floated behind her as she felt the new transformation.
Elder Aku stared at Yu in shock. Within two years, she already has the Holy Angel form! He was shocked, but proud as it meant that Yu was serious about training hard. Without ordering her to, Yu used White Thunder on Elder Aku. Elder Aku transformed into his Devil Knight form and he took Yu's attack. "A Devil?" Yu asked Elder Aku.
"This is the price you pay for being greedy about power." Elder Aku reveals to Yu. Yu was shocked. Old Man was greedy for power?! She thought in shock. She couldn't believe it! Being greedy for power is dangerous, extremely dangerous! Yu then got over her shock. She wanted to make Elder Aku proud and so, she continued to train with him for the remaining time she has with him.
"I will make you proud, Old Man." Yu swear to Elder Aku as she rushed at him once again with her new Holy Angel form.